Device and method to configure same

ABSTRACT

A motor controller for controlling an electric motor including a soft starter and a human-machine interface for control and configuration of the soft starter. The soft starter includes a visual display and a selector associated with the visual display. A method to configure a motor controller for controlling an electric motor, including a soft starter and a human-machine interface for control and configuration of the soft starter. A computer program and graphic user interface for carrying out the method.

TECHNICAL FIELD

The present invention is concerned with a soft starter for control ofelectric motors. In particular it is concerned with a motor controllercomprising a soft starter with an improved human-machine interface (HMI)for configuration and control of the soft starter.

BACKGROUND ART

Many electric motors used in industrial and commercial processes andbuildings are controlled by soft starter equipment. Soft starters areused to start a motor and stop a motor in a desired manner, such as toeliminate electrical surges in the electrical supply and/or overheatingin the motor. Soft starters are also used to reduce or eliminatemechanical shocks or vibration which might otherwise occur understart/stop conditions causing wear and damage to the pumps, fans etc.driven by the motors. A soft starter typically measures the inputcurrent and/or voltage of the motor and regulates the input currentand/or voltage received by the motor to achieve a desired start or stopperformance.

The soft starter generally requires configuration to suit thecircumstances of each application. During configuration the parametersinfluencing in particular the starting current, and also factors such asthe speed, start up time or maximum input current etc. have to beselected or set up in the soft starter according to what kind of startor stop is desired for the motor and/or the equipment it is driving.Soft starters may comprise many features and functions and theconfiguration is often therefore somewhat difficult and time consuming.

Although AC motors are used all over the world, the AC supply frequencymay be either 50 Hz or 60 Hz and the range of operating currents andoperating voltages supplied is extensive. Protection against overheatingof the semiconductor components is necessary as well as other types ofoverload protection. In summary, there usually are a great number offactors or parameters that require configuration or selection in orderto be able to use a soft starter.

Soft starters are well known in general industrial practice, see forexample, EP 1 037 373 A2, entitled “Command module for motor controlsystem”.

One type of soft starter, available from the Danfoss company, model MCD3000, comprises a display where an operator or technician may readinformation about various functions. Associated with the display is aseries of buttons with which the operator may select particularfunctions or features to be checked and/or configured. The buttons areeach marked with a pictorial symbol representative of certain functions.However, the display also includes coded names for functions, which maybe difficult for an operator to interpret correctly. In addition, adifficulty with this type of design is that the operator must recognisethe meaning of the symbols correctly in order to be able to configureand/or operate the soft starter efficiently. This requires extensivecustomer support, beginning with comprehensive user manuals in order toconfigure such a soft starter correctly.

SUMMARY OF THE INVENTION

The aim of the present invention is to remedy one or more of the abovementioned problems. This and other aims are obtained by a motorcontroller as defined in the appended claims.

A first aspect of the invention is a human-machine interface for controland configuration of a motor controller comprising a soft starter, thesoft starter including a visual display and selection means such asswitches or buttons associated with the visual display, wherein saidvisual display comprises means for presenting one or more operationaland/or control functions including various parameter settings etc. ofthe soft starter, and said associated selection means comprise hardwareand/or software switch means for selecting the one or more operationaland/or control functions so displayed and/or navigating to anotherfunction or menu option, all in accordance to the relative position onthe visual display of the functions and/or menu options so displayedversus the relative position of the associated switches or buttons.

A major advantage of the present invention is that configuration of thesoft starter for the motor controller is considerably more simple to setup and operate. The configuration functions, as well as operation orcontrol functions, are displayed one at a time in plain text and easilyunderstood words on the display, and the user simply selects that optionor selects another menu or navigation option. This is done by simplyselecting a selection means, for example that button amongst theassociated selection means, the hardware or software switches orbuttons, the relative position of which corresponds to the relativeposition of the desired option on the display.

Another advantage of the invention is that it may control a plurality ofelectric motors, that is, up to three electric motors. This means thatthe control functions enabled by the motor controller are available forup to three processes or part processes. Operational data such as numberof starts, and of lists of standard events as well as lists of alarms,is thus available for a plurality of motor applications and orprocesses.

In another aspect of the invention a method is described for configuringa soft starter of a motor controller according to the invention. Themethod include use of information displayed by the visual display anduse of the selection means to select a function and/or to navigate toother options.

In another aspect of the invention a computer program is described forcarrying out the method according to the invention. In another aspect ofthe invention a computer program product comprising a computer programfor carrying out the method of the invention is described. In anotheraspect of the invention a computer data signal embodied in a carrierwave is described. In another, further aspect of the invention agraphical user interface is described for displaying configuration forthe motor controller and/or operational data for one or more of theelectric motors so controlled.

BRIEF DESCRIPTION OF THE DRAWINGS

A more complete understanding of the method and system of the presentinvention may be had by reference to the following detailed descriptionwhen taken in conjunction with the accompanying drawings wherein:

FIG. 1 shows a front view of a soft starter according to an embodimentof the invention;

FIG. 2 shows a front view of the soft starter according to an embodimentof the invention;

FIGS. 3 a, 3 b shows a flowchart for a method for configuring thepreferred embodiment to control a flow creating means, in this case, acentrifugal pump;

FIG. 4 shows a block diagram of components of a system that arecomprised in the soft starter of the motor controller.

FIG. 5 shows a schematic diagram for connection of the motor controllerto a field bus network;

FIG. 6 shows schematically the logical arrangement of functions andoptions of the human machine interface visible via the display means;

FIG. 7 shows a flowchart for a method for configuring the preferredembodiment to control a flow creating means; and

FIG. 8 shows schematically function and navigation options of the HMI ofthe motor controller.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 shows a front elevation of a motor controller 1 comprising a softstarter according to the present invention. A control panel 2 is locatedon the front of the soft starter 1. The control panel 2 comprises adisplay 4 and selection buttons 5 and navigation buttons 6. Threeindicator lights are indicated, a Power On indicator 3 a, green whenlit, a Fault indicator 3 b, red, and a Protection indicator, yellow whenlit. The features of display 4 and buttons 5, 6 comprise the essentialelements of the HMI for configuring and operating the soft starter.

Also indicated in FIG. 1 are two data interfaces 12 and an aperture inthe front panel pf the soft starter for a field bus connection 11. Theposition of the main power supplied to the soft starter, Power line in,is indicated by the three terminals 15 a, b, c at the top of the softstarter. The position of 6 power lines for connection out to one or moreelectric motors is shown at the top and bottom of the starter, 16 a-16f. The outputs 16 d, 16 e, and 16 f are provided for connection to anexternal bypass contactor (not shown in FIG. 1). The soft starter is asemiconductor based AC motor controller and motor starter according toIEC: 60947-4-2-1999+A1:2001 and UL Standard UL 508. In use thesemiconductor based thyristors get very warm and so it is commonpractice to bypass the soft starter, when it is not in active use forstarting or stopping. The use of such a bypass avoids developing toomuch heat, especially if the device is somewhat enclosed in cabinetsetc, as well as saving energy. This method of protecting the deviceagainst excess temperatures is in addition to the current OverloadProtection included in the motor controller.

A preferred embodiment of the soft starter is shown in FIG. 2. In FIG.2, a selection button 5 a is shown, together with a selection and/orback button 5 b. A navigation and/or up button 6 a is shown togetherwith a navigation and/or down button 6 b.

FIG. 4 shows elements of a system in a simplified block diagram. Adisplay 4 associated with selection means 5, 6 which may, for example,be buttons corresponding to 5 a, 5 b, 6 a, 6 b. A microprocessor 21 isshown and a memory means 22. Selections made by the selection means 5, 6embodied as button 5 a, b, 6 a, b or in other forms are registered withthe microprocessor and stored if relevant in working memory and/or inlong term storage memory. The functions displayed at the time ofselections being made are also displayed by means of the microprocessor,so that the selection options available are provided on display means 4by program means run by the microprocessor 21 and the selection optionsactually made are saved in the memory means 22. The display ispreferably a LCD (Liquid Crystal Display) but may be any other meansincluding touch sensitive screen materials.

A method to configure the soft starter to control a flow creating meanssuch as a fan or pump, but in this case a centrifugal pump is shown inFIG. 3. The figure shows a flowchart containing representations of theactual text that is displayed by display 4 while configuring andnavigating through part of the menu system of the soft starter.

The first box, box 1 shows the display shown when the soft starter is onand connected to power so that the Power On indicator shows green. Inthis method configuration of a particular application, for a centrifugalpump, is recited to show an exemplary method for configuration accordingto the invention. The left selection button 5 a is selected, moving onto the second box. Selection of the select/up button 6 a, not shown inFIG. 3, would step the display, as suggested by the up/down arrow besidethe word settings on the display, up or down through the following listof settings step by step, which may comprise:

-   Application settings-   Basic settings-   Functional settings-   Presentation settings-   Service settings-   All settings-   Changed settings-   Reset all settings

Selection of left select button 5 a results in box 3, but selection ofright selection 5 b would have moved the display back a step to box 2.Keys 6 a or 6 b are pressed to step the application list through theavailable common industrial applications for an electric motor one byone such as:

-   Centrifugal Pump-   Hydraulic Pump-   Centrifugal Fan-   Axial Fan-   Compressor-   Conveyor-   Crusher-   Mixer-   Bow Thruster

When Centrifugal Pump is displayed, pressing the left selection button 5a, and selecting Store Set, results in going on to box 5 (but pressingright selection button 5 b would have resulted in stepping back one stepto box 4). Selecting left selection button 5 a again results in movingto box 6, where pressing the up/select 6 a or down/select button 6 bresults in changing the Motor Current value (Ie) top right of thedisplay, as suggested by the up/down arrow beside the 99.0 A value shownopposite the Setting Ie label on the display.

The soft starter may accept at least two motor connection methods, inline and inside Delta. When configuring for a motor connected in-line,100% of the desired initial current may be selected. When configuring amotor that is connected as inside Delta, a value of 58% of the desiredinitial current should be chosen.

When the appropriate initial current Ie value is shown, it is stored bypressing the left selection button 5 a which selects the operationStore, and moves the method on to box 7 where the stored value isdisplayed and selection of left selection button 5 a again, Next, takesthe user to box 8. Here, the desired overload protection class isselected from a list displayed as before, by stepping or scrolling theavailable protection types through a list by means of the up/selectbutton 6 a and/or the down selection button 6 b. In this example,overload (OL) class 10 has been selected.

Selecting the Store option by means of pressing the left selectionbutton 5 a results in the method going on to box 9 where the selected,stored OL Class is displayed and the method moves forward by selectingNext by pressing the left selection button 5 a. Box 10 presents theoption of configuring for an external bypass contactor, and using theup/select 6 a, down/select 6 b, buttons to toggle YES, NO as required.Result is stored by selecting Next with the left selection button 5 a,resulting in box 11 where selecting YES with the left selection button 5a results in the completion of the configuration, and selecting Tune Setwith the right selection button 5 b would result in options to adjustramp times, initial voltage, current limit etc.

FIG. 6 shows how the functions of the HMI are divided up into levels.This enables simple navigation with a minimum of key pressing orequivalent selection by means of the up 5 a, down 5 b selection means.Menu level 61 provides access to functions grouped under the headings ofSETTINGS, LOCAL CONTROL, EVENT LOG, STATUS INFORMATION and RESET EVENTS.It can be seen that Local Control includes functions of Start/Stop, Jogand DOL (Direct On-Line) start.

FIG. 7 shows a flowchart for a method to “step”or jog the motor via themotor controller using the Jog function of the HMI. The method begins 71with the normal display of the top menu level 61 (see FIG. 6). In theupper part of the display an up/down arrow symbol is displayed. Pressingthe upper or lower navigation key 6 a or (see FIG. 2 b) results instepping the part of the display showing the up/down arrow (

), one function group at a time, cycling through the groups SETTINGS,LOCAL CONTROL, EVENT LOG, STATUS INFORMATION and RESET EVENTS (FIG. 6).Pressing left selection button 5 a while LOCAL CONTROL is displayed inthe up/down display part and Select is displayed correspondingly lowerleft in display results in moving on to step 72.

At step 72 Local Control, the upper 6 a or lower 6 b (FIG. 2 b)navigation keys may be pressed, which would result in stepping thedisplay one function at a time through the LOCAL CONTROL function groupcomprising functions Start/Stop, Jog, and DOL Start. To jog the motor,the up or down navigation buttons 6 a or 6 b are pressed until Jogappears as shown in step 74 (while alternatively pressing the rightselection button 5 b (FIG. 2 b) would select Back and step 71). Tocontinue the method to step or jog the motor, the left selection button5 a, now corresponding to the option Select in left side of the display,is pressed when the display shows Jog in the upper left part of thedisplay as indicated in step 74. At step 75 pressing the left selectionbutton 6 a, thus in a position relative to the position of Jog in thedisplay, will jog the motor once. Pressing and holding the button downmakes the motor controller jog the motor until the button is released.Pressing right selection button 6 b would move control Back one step to74.

The configuration of the soft starter, as for the example describedabove for a centrifugal pump has been described as carried out using theHMI of the soft starter. However the same method and display schemes aremay also be carried out using a computer or similar connected to thesoft starter. FIG. 1 shows two data ports 12. In FIG. 2, data port 12 amay represent a standard serial data port and data port 12 b anothertype of data port. The soft starter comprises circuit means, connectionmeans and software means such that the procedures available via the HMIare equally available via a computer connected via data port 12 a. Thismeans in practice that instead of physically pressing buttons 5 a,b, 6a, b on the front of the soft starter, the user input is carried out bymeans of mouse clicks on images of buttons or other selection devicesdisplayed on a suitable computer screen.

FIG. 5 shows in a schematic way how one or more motor controllers may beconnected via a field bus network to a control system. FIG. 5 shows adata network 51 of a control system and a computer or workstation 53connected to the control system. The control system comprises a bank ofcontrollers 52, and a field bus 54 to which three of the soft startermotor controllers according to the invention are connected for digitalexchange of data between the motor controllers and the control system.The connection is made by field bus plugs 5511, 5611, 5711 into thefield bus socket of the soft starter (see 11 in FIGS. 1, 2).

Similarly to the data ports 12, the soft starter comprises a field busconnection 11 which allows the data collected by the soft starter to beavailable for interrogation and communication via a field bus. Thus bymeans of either a direct serial data connection, or by means of acomputer connected to a network that is connected to the field busnetwork, a soft starter may be configured using a computer nearby orremotely. It is also the case that the soft starter may be configuredover any data network including over the Internet by means of one ofthose two data connections 12 a or the field bus connection 11.

Configuration may also be carried out using wireless means such as an IRor short-range radio frequency means (e.g., Bluetooth) equippedcomputer, mobile phone or PDA or other mobile computing device. Awireless node (not shown) may be connected to a data port 12 a or to thefield bus network that the soft starter is connected to via field busconnector 11. By means of the wireless node connected in some way to thesoft starter the soft starter may be configured wirelessly using thesame methods as herein described. Any wireless protocol capable ofproviding reliable transmissions in an industrial environment may beused, including standards or protocols such as Bluetooth, Wireless LAN(WLAN). For the communication there may be further requirements imposedby the field busses or other parts of the control system. In a preferredembodiment of the invention the communication technology used is basedon the Bluetooth system. The fact that the range of a Bluetooth deviceis limited to around 10 m may be advantageous in environments with manyradio devices or areas where it is very important to keep the radiointerference levels as low as possible.

The communications from the soft starter via a data network alsocomprise a computer data signal. The computer data signal is forconfiguration and/or control and/or operation of a motor controller (1)arranged to provide control and soft starting to one or more electricmotors embodied in a carrier wave. The data signal complies with one ormore formats, for example internally formatted as an XML file, andincludes means to identify the sending soft starter and the type of datasuch as number of starts, saved events, saved alarms, configuredoverload protection etc. for said motor controller.

The microprocessor (or processors) of the soft starter, or of a motorcontroller including the soft starter, comprises at least one centralprocessing unit CPU performing the steps of the method according to anaspect of the invention. This is performed with the aid of one or morecomputer programs, which are stored at least in part in memoryaccessible by the processor. It is to be understood that the computerprograms may also be run on one or more general purpose industrialmicroprocessors or computers instead of a specially adapted computer.

The computer program comprises computer program code elements orsoftware code portions that make the computer perform the method usingequations, algorithms, data and calculations previously described. Apart of the program may be stored in a processor as above, but also in aROM, RAM, PROM EPROM or EEPROM chip or similar memory means. The programin part or in whole may also be stored on, or in, other suitablecomputer readable medium such as a magnetic disk, CD-ROM or DVD disk,hard disk, magneto-optical memory storage means, in volatile memory, inflash memory, as firmware, or stored on a data server. Removable memorymedia such as removable hard drives, bubble memory devices, flash memorydevices and commercially available proprietary removable media such asthe Sony memory stick and memory cards for digital cameras, videocameras and the like may also be used.

The computer programs described may also be arranged in part as adistributed application capable of running on several differentcomputers or computer systems at more or less the same time.

In another embodiment of the motor controller comprising the softstarter, a bypass contactor is built in to the same apparatus, thusmaking connections to an external bypass contactor unnecessary. Inaddition, configuration tasks are simplified by having the bypasscontactor already built-in to the soft starter.

FIG. 8 shows another representation of the functions and navigationoptions of the HMI of the motor controller shown in FIG. 6. From FIG. 8the effect of making selections with the selection means 5, 6 such as anup 6 a, down 6 b or left 5 a, right 5 b may be seen. Thus a sequencefrom the start menu of pressing Down to Settings functions, pressingDown to Select, pressing Left to activate Select, so accessingFunctional Settings; then pressing Down to select functional settings;so accessing either Start/stop, Protections or Warnings. It can be seenthat selections are made or activated by activating (pressing realbuttons or selecting representations of buttons on a display or computerscreen) the selection means (button) such as Down that corresponds tothe position on the display, out of lower or upper, that is required.Similarly selections of the left, right buttons are chosen when therequired selection is on the left or right of the display.

In a yet further embodiment of the invention, the HMI may be embodied asa touch screen. In this case, text lines or images included in thedisplay 4 of the preferred embodiment, and the select, navigationbuttons 5 a, b and 6 a, b, may each be embodied as images on a touchscreen. Configuration may be carried out according to the same methodbut executed by means of touching parts of the screen instead ofpressing buttons, or by clicking with a computer mouse or otherpointing/selection device.

1. A motor controller for controlling an electric motor comprising: asoft starter; and a human-machine interface for control andconfiguration of the soft starter, said human-machine interfacecomprising: a visual display; means for visually presenting one or morefunctions of the soft starter and one or more menu options in two ormore positions on the visual display, and two or more selection meansassociated with the visual display for selecting the one or morefunctions or menu options according to the position of each of the twoor more functions or menu options on the visual display, wherein theposition of each of the two or more selection means on the human-machineinterface corresponds to a position of the function or menu optionoperable by the selection means on the visual display, wherein the twoor more positions on the visual display include at least one leftposition and at least one right position, wherein the two or moreselection means comprise a left selection button for selecting afunction or option displayed in the left position of the visual displayand a right selection button for selecting a function or optiondisplayed in the right position of the display.
 2. The motor controlleraccording to claim 1, wherein the two or more selection means comprisean upper selection button and a lower selection button for selectingfunctions or options displayed in upper and lower positions on thevisual display.
 3. The motor controller according to claim 1, whereinthe two or more positions on the visual display include at least oneupper position and at least one lower position, wherein the selectionmeans comprise means for selecting either from an option in the upperposition in the display or an option in the lower position in thedisplay.
 4. The motor controller according to claim 1, wherein saidmotor controller may provide control and soft start functions to aplurality of electric motors.
 5. The motor controller according to claim1, wherein said motor controller may provide control and soft startfunctions to an AC electric motor running on one or more phases.
 6. Themotor controller according to claim 1, wherein said motor controller mayprovide control and soft start functions to an AC electric motor runningat either of two selectable frequencies.
 7. The motor controlleraccording to claim 1, wherein said motor controller comprisesconnections for an external by pass contactor.
 8. The motor controlleraccording to claim 1, wherein said motor controller comprises one ormore data ports capable of serial data transmission.
 9. The motorcontroller according to claim 1, wherein said motor controller comprisesone or more connections for a field bus.
 10. The motor controlleraccording to claim 1, wherein said motor controller comprises one ormore memory means for processing data.
 11. The motor controlleraccording to claim 1, wherein said motor controller comprises one ormore memory means for storing data from configuration and/or data frommeasurements and operations.
 12. The motor controller according to claim1, wherein said motor controller comprises a built-in by pass contactor.13. The motor controller according to claim 1, wherein said motorcontroller comprises one or more connections for a data networkcompatible with an Ethernet standard.
 14. The motor controller accordingto claim 1 adapted to configure and operate an electric motor to driveone of a Centrifugal Pump, a Hydraulic Pump, a Centrifugal Fan, an AxialFan, a Compressor, a Conveyor, a Crusher, a Mixer, and a Bow Thruster.15. The motor controller according to claim 1 adapted to configure andoperate an electric motor controlled by the motor controller.
 16. Themotor controller according to claim 1 adapted to configure and operatean electric motor by means of a process running on one or more computersto supervise a function of a device arranged driven by at least oneelectric motor controlled by the motor controller.
 17. The motorcontroller according to claim 1, further comprising: a processor; one ormore computer readable media; and a computer program comprised in saidcomputer readable media and executing on said processor, wherein saidcomputer program comprises computer code means and/or software codeportions for presenting the one or more functions of said soft starterand menu options on the visual display and processing selectionsreceived by the selections means.
 18. The motor controller according toclaim 1, further comprising: at least one data port; wherein the motorcontroller is configured to send, via said data port, a computer datasignal for configuration of the motor controller, arranged to providecontrol and soft starting, running and soft stopping to one or moreelectric motors, embodied in a carrier wave, in that the signalcomprises one or more configured functions and/or values forconfiguration data for said motor controller.
 19. The computer datasignal according to claim 18, further comprising: a wireless nodeincluding a short range wireless means; wherein said computer datasignal is communicated by the short range wireless means according to aBluetooth standard or a WLAN standard.
 20. A graphical user interface ofa computerised device for displaying configuration functions, menuoptions and parameter settings for a motor controller for control andsoft starting, soft stopping of one or more electric motors according toclaim
 1. 21. The graphical user interface according to claim 20, furthercomprising a representation of the visual display of the motorcontroller and the selection means of the controller in a graphical userinterface on a computer display screen of a computing device.
 22. Thegraphical user interface according to claim 20, wherein the computingdevice may be a portable computing device comprising any from the listof: IR or Bluetooth equipped computer, mobile phone or PDA or othermobile computing device.
 23. The graphical user interface according toclaim 20, wherein the configuration data values displayed are arrangedto be displayed upon activation of a part of the graphicalrepresentation of the visual display or selection means of the motorcontroller using a computer mouse, touch screen, stylus, keypad,keyboard or other computer display selection means.
 24. The motorcontroller according to claim 1, wherein the two or more selection meansincludes: at least two selection buttons for selecting the one or morefunctions and menu options; and at least one navigation button fornavigating to another function.
 25. A method to configure a motorcontroller for controlling an electric motor, including a soft starterand a human-machine interface for control and configuration of the softstarter, the method comprising: presenting one or more functions of saidsoft starter and one or more menu options on a visual display of saidsoft starter, selecting one of the one or more functions of said softstarter or one of the one or more menu options by activating a selectionmeans of a plurality of selection means associated with the visualdisplay, which selection means being the only one of the plurality thatcorresponds to the position of the selected function or menu option onthe visual display; wherein selecting the functions or menu optionsincludes selecting a menu function or operation presented on the visualdisplay by activating either an up or a down navigation selection meansand selecting a menu function or operation presented on the visualdisplay by activating either a left or a right selection means.
 26. Themethod according to claim 25, further comprising: selecting an increasedor decreased value presented on the visual display by activating eitheran up or a down navigation selection means.
 27. The method according toclaim 25, further comprising: selecting a menu function or operationpresented on the visual display by activating either an up or a downnavigation selection means.
 28. The method according to claim 25,further comprising: selecting one of the one or more menu options on thevisual display of said soft starter, by means of operating one of aplurality of selection means associated with the visual display, whichselection means being the only one of the plurality that corresponds tothe position of the menu option on the visual display.
 29. The methodaccording to claim 25, further comprising: selecting a value for afunction of the soft starter via the visual display of said soft starterby means of operating one of a plurality of selection means associatedwith the visual display, which selection means being the only one of theplurality of selection means that corresponds to the position of thefunction value on the visual display.
 30. The method according to claim25, further comprising: selecting an option by means of selecting arepresentation of a left selection button or a right selection button ona computer display screen of a computing device connected to the motorcontroller via a data port or field bus connection of the motorcontroller.
 31. The method according to claim 25, further comprising:selecting an option by means of selecting a representation of a upperselection button or a lower selection button on a computer displayscreen of a computing device connected to the motor controller via adata port or field bus connection of the motor controller.
 32. Themethod according to claim 25, further comprising: selecting an option bymeans of selecting one or more representations of a selection buttons ona computer display screen of a computing device connected to the motorcontroller in part via a wireless connection.
 33. The method accordingto claim 25, further comprising: sending a data transmission usingwireless communication means configured to operate according to astandard compatible issued by the Bluetooth Group.